B&K Precision 1673 - Manual - Manual (Page 19)

17
 Do not obstruct the ventilation holes in the rear panel as this will increase the
internal temperature.
 Do not operate the instrument with the cover removed unless you are a qualified
service technician.
 Clean and recalibrate the instrument on a regular basis to keep the instrument
looking nice and working well.
 Remove any dirt, dust, and grime whenever they become noticeable on the
outside cover using a soft cloth moistened with a mild cleaning solution.
7.2 When the Unit is Not Turning On
Check if the power ON/OFF switch is turned ON. Check for blown fuse. If not, then check
the power cord. Please make sure that the power cord is properly connected to the unit.
Please also check the main switch and ensure that the AC supply at your site is the same as
the one mentioned at the rear chassis of the unit.
7.3 Fuse Replacement
If the fuse blows, the LED will not light and the instrument will not operate. Replace only
with the correct value fuse. The fuse is located on the rear panel adjacent to the power
cord receptacle.
Remove the fuse holder assembly as follows:
1. Unplug the power cord from the rear of the instrument.
2. Insert a small screwdriver in the fuse holder slot (located between fuse holder and
receptacle).
When reinstalling fuse holder, be sure that the fuse is installed so that the correct line
voltage is selected.